Renumbers LaTeX references.
Compile with
c++ -std=c++11 -O3 src/cpptexnumber.cpp -o cpptexnumber
A CMakeLists.txt is provided for
automatic building via CMake. The compiler must be C++11
compliant and must fully support the std::regex Regular Expression library of
the C++ Standard Library. I recommend gcc version 4.9
or later, or clang version 3.5 or later.
Building with CMake
I recommend an out-of-source build, i.e., from the root of the project, execute
cmake -B build
cmake --build build
The above commands build the executable cpptexnumber inside the build
directory.
The program reads from the standard input and writes to the standard output.
cpptexnumber <in.tex >out.tex pattern replacement [ignore_comments ON(default)/OFF] [log_file]
Replaces all labels from the input stream (in this case redirected
from in.tex) that match a given input pattern, such as \label{pattern*}
and all corresponding references (\ref, \eqref, \pageref) with renumbered
ones replacement+idx, where idx counts the matching \label{pattern*}
order of appearance, i.e., equals 1 for the first \label that matches the
input pattern, 2 for the second etc. The output is written to the standard
output (in this case redirected to out.tex). Optionally, writes the
replacement pattern sequence to log_file. Warnings and errors are output to
the standard error stream.
Consider a LaTeX file in.tex having three labels, named, in order of
appearance, \label{eqn5}, \label{eqn_important}and lastly \label{entropy}.
Then the command
cpptexnumber <in.tex >out.tex eqn Eqn ON log.txt
will replace \label{eqn5} by \label{Eqn1} (and also all references to
eqn5 will automatically become references to Eqn1) and replace
\label{eqn_important} by \label{Eqn2} (again together with the
corresponding references), while ignoring any LaTeX comments. The
\label{entropy} remains unchanged since it does not match the input pattern
\label{eqn*}. The changes are saved to the file out.tex, and the
replacement pattern sequence is written to the file log.txt.